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Defend Your PC Against Viruses, Worms and Hackers! Introducing Windows XP Service Pack 2 with Advanced Security Microsoft Windows XP Service Pack 2 (SP2) with Advanced Security Technologies provides users with an enhanced security infrastructure to help defend against viruses, worms, and hackers. In addition, it helps provide increased manageability and control along with an improved, more consistent user experience. The latest Service Pack for Windows XPService Pack 2 (SP2)is all about security, and its one of the most important service packs ever released. It provides better protection against viruses, hackers, and worms, and includes Windows Firewall, Pop-up Blocker for Internet Explorer, and the new Windows Security Center.